含席夫碱查尔酮类杂环化合物的合成与表征

tharee Ghanim, A. Omar
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引用次数: 0

摘要

本研究首先将3-乙酰香豆素与对苯二醛反应制得含有游离醛基团的查尔酮,该查尔酮与(4-氨基安替比林)反应制得席夫碱,以(钠氮肼)为前体反应制得(四唑),然后与某些化合物(羟胺、氨基酚、苯二胺、肼、半脲、硫代氨基脲)缩合。以尿素、硫脲和喹啶为前体,利用经典和超声技术在碱性介质中合成异恶唑、恶西烷、二氮卓、吡唑和嘧啶衍生物。经典方法与超声方法的比较。是实现。通过FT-IR和1h NMR对所制化合物的组成进行了确证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synthesis, Characterization of some new Heterocyclic Compounds Derived from Chalcones Containing Schiff Bases
The present work involves the new chalcones containing Schiff bases, In this study, firstly, reaction of 3-acetylcoumarin with terephthaldehyde to prepared chalcones which contains a free aldehyde group which has been reacted with (4-Aminoantipyrine) to prepare Schiff bases, which was reacted (sodiumazide) as precursor to form (Tetrazole) followed by condensation of these chalcones with some compounds (hydroxylamine, aminophenol, phenylenediamine, hydrazine, semicar-bazide, thiosemicarbazide, urea, thiourea and quanidine) as precursor to form Isoxazole, oxazepane, diazepine, pyrazoles and pyrimidine derivatives in basic medium using classical and ultrasonic technique. The comparison of the classical methods with ultrasonic methods. Was achieved. The compositions of the prepared compounds were confirmed by FT-IR and 1 H NMR spectroscopy.
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